Unipotent elements in small characteristic
Representation Theory
2007-05-23 v2
Abstract
We make a study of unipotent elements in a connected reductive group over an algebraically closed field with emphasis on the case where the characteristic is a bad prime. We try to see how much of the theory of Dynkin-Kostant extends to this case. We also study the variety of Borel subgroups containing a unipotent element and prove a purity property for its cohomology in certain cases in bad characteristic.
Keywords
Cite
@article{arxiv.math/0503739,
title = {Unipotent elements in small characteristic},
author = {G. Lusztig},
journal= {arXiv preprint arXiv:math/0503739},
year = {2007}
}
Comments
39 pages